Year	Percent
1963-01-01	7.70891300000000100000
1964-01-01	0.00025490000000000000
1965-01-01	8.86078300000000000000
1966-01-01	0.00024990000000000000
1967-01-01	8.19547400000000000000
1968-01-01	0.00023740000000000002
1969-01-01	0.00018759999999999998
1970-01-01	0.00020310000000000000
1971-01-01	0.00020059999999999997
1972-01-01	0.00021200000000000000
1973-01-01	0.00021170000000000000
1974-01-01	0.00023930000000000002
1975-01-01	0.00026520000000000000
1976-01-01	0.00025460000000000000
1977-01-01	0.00027220000000000000
1978-01-01	0.00026500000000000000
1979-01-01	0.00018840000000000000
1980-01-01	0.00006650000000000000
1981-01-01	0.00007340000000000001
1982-01-01	0.00007340000000000001
1983-01-01	0.00007340000000000001
1984-01-01	0.00007340000000000001
1985-01-01	0.00007340000000000001
1986-01-01	0.00007340000000000001
1987-01-01	0.00007340000000000001
1988-01-01	3.61941600000000000000
1989-01-01	8.38785800000000000000
1990-01-01	7.11315900000000000000
1991-01-01	4.80980900000000000000
1992-01-01	4.68305000000000000000
1993-01-01	5.94244800000000100000
1994-01-01	3.56187300000000030000
1995-01-01	3.28694200000000000000
1996-01-01	3.28694200000000000000
1997-01-01	3.28694200000000000000
1998-01-01	3.28694200000000000000
1999-01-01	3.28694200000000000000
2000-01-01	6.78982600000000000000
2001-01-01	5.25723900000000000000
2002-01-01	4.12901900000000000000
2003-01-01	4.82402900000000000000
2004-01-01	6.36376100000000000000
2005-01-01	4.38347700000000000000
2006-01-01	4.60364400000000000000
2007-01-01	6.23368700000000100000
2008-01-01	6.89137800000000000000
2009-01-01	6.76313800000000050000
2010-01-01	6.70074400000000000000
2011-01-01	7.70500700000000100000
2012-01-01	7.74750000000000000000
2013-01-01	8.41134900000000100000
2014-01-01	12.93556000000000000000